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63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*-
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* Copyright 2005,2007,2009 Colin Percival
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $
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*/
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#ifndef _SHA256_H_
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#define _SHA256_H_
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#include <sys/types.h>
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#include <stdint.h>
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typedef struct SHA256Context {
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uint32_t state[8];
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uint32_t count[2];
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unsigned char buf[64];
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} SHA256_CTX;
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typedef struct HMAC_SHA256Context {
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SHA256_CTX ictx;
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SHA256_CTX octx;
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} HMAC_SHA256_CTX;
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void SHA256_Init(SHA256_CTX *);
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void SHA256_Update(SHA256_CTX *, const void *, size_t);
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void SHA256_Final(unsigned char [32], SHA256_CTX *);
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void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t);
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void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t);
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void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *);
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/**
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* PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
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* Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
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* write the output to buf. The value dkLen must be at most 32 * (2^32 - 1).
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*/
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void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t,
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uint64_t, uint8_t *, size_t);
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#endif /* !_SHA256_H_ */
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